Microblog

• Seeing a retina screen for the first time is so impressive that it ruins the experience of using regular screens. Spatial audio is better than stereo, but it is not impressive. I wonder if stereo would sound bland after getting used to spatial audio.

• iPad Air 2 was released on October 2014. It will get the latest operating system, iPadOS 15, 7 years after its introduction. And the hardware is still solid — I use one daily. I have never used a product with a higher return on investment.

• Apple Watch Series 4: can generate an ECG — can’t track sleep.

• iOS 12 performance make old versions seem broken.